CN102705156B - The method of vortex generator arrangement is installed by mounting plate - Google Patents
The method of vortex generator arrangement is installed by mounting plate Download PDFInfo
- Publication number
- CN102705156B CN102705156B CN201210103232.0A CN201210103232A CN102705156B CN 102705156 B CN102705156 B CN 102705156B CN 201210103232 A CN201210103232 A CN 201210103232A CN 102705156 B CN102705156 B CN 102705156B
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- Prior art keywords
- wind turbine
- turbine blade
- mounting plate
- fluid modifier
- blade
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000012530 fluid Substances 0.000 claims abstract description 69
- 239000003607 modifier Substances 0.000 claims abstract description 51
- 239000012528 membrane Substances 0.000 claims description 32
- 239000011265 semifinished product Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 5
- 239000002390 adhesive tape Substances 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 description 22
- 239000003795 chemical substances by application Substances 0.000 description 8
- 229920000515 polycarbonate Polymers 0.000 description 7
- 239000004417 polycarbonate Substances 0.000 description 7
- 230000007704 transition Effects 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 241000167854 Bourreria succulenta Species 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 235000019693 cherries Nutrition 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 210000000497 foam cell Anatomy 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000007977 PBT buffer Substances 0.000 description 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- 230000000007 visual effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/0608—Rotors characterised by their aerodynamic shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/10—Stators
- F05B2240/12—Fluid guiding means, e.g. vanes
- F05B2240/122—Vortex generators, turbulators, or the like, for mixing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05B2240/306—Surface measures
- F05B2240/3062—Vortex generators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/49318—Repairing or disassembling
Abstract
The invention discloses a kind of method fluid modifier being attached to the outer surface of wind turbine blade.Fluid guiding device is the type with base, and this base comprises inner side and outer side, and inner side is used for being attached to wind turbine blade on the surface, and outside has outstanding fluid modifier parts.The method comprising the steps of: a) embed in mounting plate by outstanding fluid modifier parts, the inner side of fluid guiding device is made to be exposed to the first side of mounting plate, b) by the first side of mounting plate is applied on the application region on the surface of wind turbine blade, make the inner side of fluid modifier be adhered to the surface of wind turbine blade, and c) remove mounting plate from the application region the surface of wind turbine blade.
Description
Technical field
The present invention relates to a kind of method fluid modifier being attached to the outer surface of wind turbine blade, fluid guiding device is the type with base, this base comprises inner side and outer side, inner side is used for being attached in wind turbine blade on the surface, and outside has outstanding fluid modifier parts.The invention still further relates to the semifinished product and kit that use in the process.
Background technique
Normally, when settling the vortex generator arrangements such as such as VG (vortex generator) bar on wind turbine blade, mill out in blade or otherwise cut recess, the base plate of vortex generator bar is embedded in recess, and the top surface of base plate is flushed with blade surface substantially.Therefore, the base plate of described bar is not given prominence to from blade surface, thus, reduces bar between the normal spreadable life of wind turbine blade and is torn loosening risk.And, reduce the risk that base plate convection cell produces undesirable impact or causes noise.But this attachment method is made slow progress, and may not wish to mill out recess on the surface of blade for the reason of structure yet.Therefore, in many aspects, expect vortex generator bar to be directly installed on wind turbine blade on the surface.
WO2007/140771 describes a kind of scheme, and wherein vortex generator bar is such as by using bonding film to be directly arranged on the surface of wind turbine blade.The engaging zones of vortex generator bar is completely or partially covered by seal arrangement, thus prevents vortex generator bar between the spreadable life to be torn from blade.In the publication, the region that the periphery that engaging zones is restricted to bar engages this surface and the region in more or less visual gap formed between bar and blade surface, circle segment.Can recognize, the additional step that the program seals the periphery of vortex generator bar after being included in and installing over the paddle by bar.People be desirably in vortex generator arrangement is attached to wind turbine blade on the surface time omit this step.
Prior art does not also provide process vortex generator bar and simply vortex generator bar is applied to the straightforward procedure of wind turbine blade.When installing multiple device additional to the surface of blade, this problem is even more remarkable.
Summary of the invention
The object of the invention is preparation method, semifinished product and kit, it overcomes or improves at least one shortcoming of prior art, or its alternative provided.
According to first aspect, the invention provides a kind of method, comprise step: a) embed in mounting plate by outstanding fluid modifier parts, the inner side of fluid guiding device is made to be exposed to the first side of mounting plate, b) by the first side of mounting plate is applied on the application region on the surface of wind turbine blade, make the inner side of fluid modifier be adhered to the surface of wind turbine blade, and c) remove mounting plate from the application region the surface of wind turbine blade.
Therefore, a kind of straightforward procedure fluid modifier being attached to blade surface is provided.The mounting plate with the fluid modifier be embedded into can be transported to the scene of the wind turbine being such as provided with wind turbine blade with single assembly, described wind turbine blade will be installed additional fluid modifier.
Once be installed on the surface of wind turbine blade, outside will deviate from the described surface of wind turbine blade, and the fluid modifier parts given prominence to are given prominence to from the surface of wind turbine blade.
According to favourable mode of execution, fluid modifier is vortex generator arrangement or turbulence-creating devices.Fluid modifier can be such as fin (vane) vortex generator.Correspondingly, outstanding fluid modifier parts can be fin or fin.
The mode of execution favourable according to another, the inner side of the base of fluid modifier is provided with the bonding film covered by peel ply, such as two self adhesive tape, and wherein the method is included in step b) before remove the step of peel ply.Therefore, bonding film can be protected to keep the adhesiveness of film, until bar is installed on wind turbine blade.
Advantageously, step a) in multiple fluid guiding device be embedded in mounting plate, fluid guiding device along mounting plate with predetermined spaced setting.
The mode of execution favourable according to another, prepared application region and is used for bonding before step a).Application region can such as be polished, polishing, sand papering etc., then cleaned alternatively.
Mode of execution favourable according to another again, mask membrane is applied to the surface of wind turbine blade before step a), mask membrane is provided with opening, and opening corresponds to the desired locations of the fluid modifier on wind turbine blade surface.Therefore, the region wherein by setting or spot fluids modifier can only be prepared.Therefore, the grinding on surface, sand papering or polishing can not circle zones by mistake on damaged blade outer surface.And, before fluid modifier is adhered to blade surface, can blade surface be checked, to guarantee that fluid modifier will be arranged on correct position.
According to Advantageous embodiments, mask membrane comprises mark, and such outer periphery correspond to the shape of mounting plate, and it indicates in step b) in where location and installation plate.Therefore, the surface area of label film can be approximately identical with the surface area size of the first side of mounting plate.
Advantageously, the inside that mask membrane comprises around opening removes membrane portions, and the method is included in step b) before inside removed membrane portions remove.Therefore, can guarantee that fluid modifier by mistake can not be adhered to mask membrane but can be adhered on the outer surface of wind turbine blade.Meanwhile, the remainder of mask membrane can as mark with in step b) period instruction is used for the correct region of location and installation plate.
According to a favourable mode of execution, in step b) after remove mask membrane from the surface of wind turbine blade.Therefore, mask membrane can such as in step c) before be removed immediately, in step c) while be removed immediately or in step c) after be removed immediately.
In fact, due to factors such as high wind, can be not suitable for using mask membrane.Therefore, in step b) can advantageously installation be arranged on the outer surface of blade with reference to rope before.Therefore, mounting plate can be positioned in such as contiguous or basic adjacent with reference to rope place.Can such as by using the surface of being with and being applied to blade with reference to rope.
According to another Advantageous embodiments, other mounting plate comprises the other fluid guiding device exposed from its first side, and also comprise opening in its one end, described opening is for receiving the fluid guiding device be installed on the surface of wind turbine blade, and wherein the method also comprises step: the fluid guiding device installed is embedded in opening, and subsequently with step b) identical mode bonds other fluid guiding device.Therefore, other fluid guiding device can be arranged in the direct expanded range of the fluid guiding device installed, and/or arranges according to the direction pre-seted and the interval between the outermost fluid guiding device installed and the other fluid guiding device closed on.Opening can certainly be provided with corresponding predetermined interval relative to contiguous embedding fluid guiding device.
According to another Advantageous embodiments, the epitrochanterian wind turbine blade being positioned in wind turbine performs described method on the spot.Certainly, also before being placed on wind turbine rotor by wind turbine blade, (such as after manufacture wind turbine blade) described method can be performed on wind turbine blade.
In one embodiment, blade is positioned in substantially vertical position, and end points to ground, and wherein in step b) before, workman declines downwards along the point of wind turbine blade above application region, or alternately workman upwards promotes from the point below application region.
According to another mode of execution, workman can use cherry picker to be used for realizing near application region.Workman also can decline (rappel) by point (such as from the wheel hub) wiring above application region.
According to second aspect, the invention provides the semifinished product used in preceding method, namely there is the mounting plate of fluid modifier.
Therefore, the invention provides a kind of semifinished product to comprise: there is the mounting plate of the first side and the second side and multiple fluid modifier, fluid modifier comprises base, base comprises inner side and outside, inner side is for being attached in the surface of wind turbine blade, outside has outstanding fluid modifier parts, and wherein outstanding fluid modifier parts are embedded in the first side of mounting plate, make the inner side of fluid guiding device be exposed to the first side of mounting plate.
In an Advantageous embodiments, mounting plate is made up of foamed polymer at least partly.
In another Advantageous embodiments, fluid modifier is the vortex generator of fin vortex generator or another type.
Vortex generator arrangement can be provided with base, base has inner side and outside, when being arranged on wind turbine blade outside, inner side is used for being attached in such as wind turbine blade outside and waits on the surface, outside deviates from wind turbine blade outside, described device is provided with fin vortex generator pair, and fin vortex generator is to the first fin protruding outside comprised from base and the second fin.Advantageously, base can have first end and the second end and the first side and the second side in echelon, wherein the second side is longer than in the first side, and wherein the first fin is arranged on the first end place of base and is basically parallel to the first end of base, the second fin is arranged on the second end place of base and is basically parallel to the second end of base.
Therefore, the invention provides fin vortex generator pair, it is arranged mutually in advance, but wherein, compared with prior art the surface area of base reduces, and therefore hinders free fluid as few as possible through wind turbine blade.
Advantageously, the first fin and the second fin are oriented such that they form the mutual angle of 10 to 70 degree or 15 to 60 degree or 20 to 50 degree.Correspondingly, the first end of base and the second end can form the angle of corresponding size.
In a particularly advantageous mode of execution, the inner side of base is equipped with recess or undercut portions (undercut) for obtaining tackiness agent (adhesive).Therefore; tackiness agent (such as with the form of self adhesive tape) can be embedded in recess or undercut portions; make to be installed on the surface of wind turbine blade once vortex generator arrangement; because circle segment can contact blade, the circle segment of the inner side of base just can protect tackiness agent.Therefore, do not need the edge seal of the base of vortex generator bar subsequently.
According to a favourable mode of execution, bonding film or bar (such as two self adhesive tape or bar) are arranged within the recess of inner side.This provides one simple especially scheme, and wherein tackiness agent can by pre-application in vortex generator arrangement.
In one embodiment, bonding film or bar comprise compressible material layer, such as foamed polymer or foam cell layer.Therefore, bonding film or layer are suitable for the surface meeting wind turbine blade better.Advantageously, bonding film or bar are covered by peel ply.Therefore, bonding film or bar can be protected, to keep the adhesiveness of film, until band is installed on wind turbine blade.
In a favourable mode of execution, tackiness agent is acrylic based binders (acrylicbased).Tackiness agent can be such as pressure-sensitive, therefore when vortex generator arrangement being assembled to wind turbine blade surperficial, provides simple scheme, because workman only needs to apply pressure to the base of vortex generator arrangement.
In the mode of execution that another is favourable, protruding outside from base of vortex generating means.Vortex generating means can be such as fin vortex generator, namely from fin protruding outside.
Again in the mode of execution that another is favourable, base comprises the first periphery, and its center dant comprises the second periphery, and the second periphery has the spacing to the first periphery.Therefore whole recess is surrounded with little wall, protects the tackiness agent in recess thus.First periphery can be basically parallel to the second periphery.
In a favourable mode of execution, the height of the first fin and/or the second fin at least increases towards the first side along a part for described fin from the second side.The shape of the first fin and/or the second fin can be such as basic triangle or wedge shape.But shape may form (such as having the top of equating to a certain degree) depart from therewith to some extent, the derivative of height can such as increase from the second side towards the first side or reduce.But on the whole, fin will have minimum constructive height in the second side (or being equal to front edge side) and has maximum height at the first side (or being equal to trailing edge side) place near base.Fin (multi-disc fin) can form one with base.Alternatively, base can manufacture with fin the parts be separated, and it is coupled each other or bonds subsequently.
The periphery of base or edge can be taper or circle, to obtain the transition gradually on the surface of wind turbine blade.Vortex generator arrangement can be made up of wood, aluminium or stainless steel.But according to favourable mode of execution, vortex generator is made up of polymeric material, such as TPU, PBT, PET or LDPE.Vortex generator arrangement also can be made up of the composition of polycarbonate (PC) (PC) or PBT and PC.
In principle, certainly other sealing compound can be added to the edge of base.But recess or undercut portions eliminate this indispensability.
According to second aspect, the invention provides a kind of kit, this kit to comprise according to any one of aforementioned embodiments and has the vortex generator arrangement of different size (such as two or three sizes).Kit such as can comprise the vortex generator with two different heights, one group of vortex generator with the first height and have second group of vortex generator of the second height.Second can be approximately highly first height 1.5 or 2 times.Similarly, kit can comprise the 3rd group of vortex generator with third high degree.Third high degree can be approximately 3 times of the first height.
In favourable mode of execution, the inner side of base is recessed between the first side and the second side.Therefore, vortex generator arrangement is suitable for meeting curved surface, the surface of such as wind turbine blade.Whole base (no matter being namely inner side or outside) can be bending certainly, but both sides do not need to have identical curvature.Curvature can be set as the mean of the curvature of blade part section, device be expected to be like this in case its by prebuckling to coordinate blades different in a large number and/or blade part section.Bonding film or bar comprise the compressible material that one deck is used to compensate change, accurately to coordinate the curvature of blade.
According to a favourable mode of execution, fin also comprises and is positioned at from the nearest rear edge part in the trailing edge side of fin, and it is towards the taper of the trailing edge side of fin, and/or fin is towards the taper of fin top section.
Therefore, obviously, fin has rear edge part, and the height of fin reduces towards trailing edge side wherein, and/or foil thickness (distance namely between the first side of fin and the second side) reduces towards the top section of fin.Therefore, vortex generator arrangement can be manufactured by being molded, and guarantee to unclamp be molded vortex generator arrangement from mould, and the parts of vortex generator arrangement need not be broken.Meanwhile, as compared to the vortex generator arrangement with triangle fin (triangle fin contains non-tapered trailing edge and non-tapered thickness) of routine, the function of vortex generator arrangement can not weaken.
Correspondingly, vortex generator arrangement can be molded according to Advantageous embodiments.
According to favourable mode of execution, vortex generator arrangement is made up of metal (such as aluminium or stainless steel) or polymer material (composition of such as TPU, PBT, PET or LDPE, polycarbonate (PC) (PC) or PBT and PC).
The mode of execution favourable according to another, the surface normal of rear edge part respect thereto is formed with interval average trailing edge cone angle between 1 to 20 degree or between 1 to 15 degree or between 1 to 10 degree.Advantageously, between average trailing edge cone angle is spent 4 to 8, such as about 6 degree.Certainly, when be arranged on wind turbine blade on the surface time, rear edge part also should be formed with the equal angular of relative wind turbine blade surface normal.Because rear edge part can be bent slightly, so employ term " average angle ".
According to a mode of execution, rear edge part is straight substantially.Therefore, whole hinder marginal part is divided into the taper of band cone angle, and this cone angle forms the trailing edge cone angle of apparent surface's normal.
The mode of execution favourable according to another, the both sides of fin are formed with the thickness-cone angle between 0.5 and 5 degree or between 0.5 and 3.5 degree or between 0.5 and 2 degree.Therefore, fin becomes basic taper towards the top section of fin.
Again in the mode of execution that another is favourable, the first fin and the second fin tilt toward each other, and each fin apparent surface normal is formed with the tilt angle between 0.5 and 3 degree.Therefore, the first fin and the second fin tilt toward each other slightly.
Advantageously, leading edge portion along fin overall length at least 50% or at least 60% or at least 70%, or at least 75% extend.Leading edge portion even can extend along at least 80% of fin overall length or 85%.
The mode of execution favourable according to another, fin (i.e. the first fin and/or the second fin) comprises the top section of equating.Fin such as can have intermediate portion, wherein the height substantially constant of fin.But this part also can rounding or similar shape slightly.
According to the third aspect, the invention provides a kind of kit, it comprises semifinished product according to any one of aforementioned embodiments and mask membrane, and the outer surface that described mask membrane is suitable for being applied in wind turbine blade is provided with the opening of the desired locations corresponding to the fluid modifier on wind turbine blade surface.
According to favourable mode of execution, the inside that mask membrane comprises around opening removes membrane portions.
According to fourth aspect, the invention provides the kit of semifinished product and the many installations reference rope comprised according to any one of aforementioned embodiments.In addition, kit can comprise band rope being installed to the outside of wind turbine blade.
Accompanying drawing explanation
With reference to the mode of execution shown in accompanying drawing, the present invention will be explained in detail below, in the accompanying drawings:
Fig. 1 shows the schematic diagram of wind turbine,
Fig. 2 shows the schematic diagram of wind turbine blade,
Fig. 3 shows the schematic diagram of aerofoil profile (airfoil) profile,
Fig. 4 shows the schematic plan according to vortex generator arrangement of the present invention,
Fig. 5 shows the schematic, bottom view according to vortex generator arrangement of the present invention,
Fig. 6 shows the cross-sectional view according to vortex generator arrangement of the present invention,
Fig. 7 shows another side view according to vortex generator arrangement of the present invention,
Fig. 8 a-h shows according to the difform fin for vortex generator arrangement of the present invention,
Fig. 9 shows the wind turbine blade added according to vortex generator arrangement of the present invention,
Figure 10 shows the wind turbine blade portion section having mask membrane (maskingfilm) arranged according to the present invention,
Figure 11 shows according to the present invention, the stereogram being provided with the mounting plate of vortex generator arrangement,
Figure 12 shows vortex generator arrangement and is assembled to wind turbine blade portion section after the surface of wind turbine blade, and
Figure 13 shows the use to criterion (alignmentstring).
Embodiment
Fig. 1 illustrates the upwind wind turbine in the modern times of the routine according to so-called " Denmark's concept (Danishconcept) ", and it has pylon 4, cabin 6 and rotor, and rotor has the rotor shaft of basic horizontal.Three blades 10 that rotor comprises wheel hub 8 and extends from wheel hub 8 radial direction, each blade has from the nearest root of blade 16 of wheel hub with from wheel hub 8 blade end 14 farthest.Rotor has the radius represented with R.
Fig. 2 shows the schematic diagram of the first mode of execution according to wind turbine blade 10 of the present invention.Wind turbine blade 10 has the shape of conventional wind turbine blade, and comprises from the nearest root area 30 of wheel hub, from wheel hub forming area farthest or airfoil region 34 and the transition region between root area 30 and airfoil region 34 32.Blade 10 comprises leading edge 18 and trailing edge 20, and when blades installation is on wheel hub, leading edge 18 is towards the sense of rotation of blade 10, and trailing edge 20 is towards the opposite direction of leading edge 18.
Airfoil region 34 (also referred to as forming area) has ideal or almost desirable blade shape for generation lift, and for the consideration to structure, root area 30 has basic circular or oval cross section, such as, its to make blade 10 to be installed to wheel hub easier and safer.The diameter (or wing chord) of root area 30 is normally constant along whole root area 30.Transition region 32 has transition profile 42, and transition profile 42 changes over the aerofoil profile 50 of airfoil region 34 gradually from the circle of root area 30 or elliptical shape 40.The chord-length of transition region 32 increases to substantial linear along with the increase of the distance r from wheel hub usually.
Airfoil region 34 has aerofoil profile 50, and this aerofoil profile 50 has the wing chord extended between the leading edge 18 and trailing edge 20 of blade 10.The width of wing chord reduces along with the increase of the distance r from wheel hub.
It should be noted, the wing chord of the different portions section of blade is not arranged in a common plane usually, can be reversed due to blade and/or bend (namely pre-bending) and be that wingchordpiston provides corresponding torsion and/or bending route, this is the most common situation, thus compensates the local velocity of the blade of the radius depended on from wheel hub.
Fig. 3 shows the schematic diagram of the aerofoil profile 50 of the typical blade with the wind turbine described by various parameter, and these parameters are commonly used to the geometrical shape limiting aerofoil profile.Aerofoil profile 50 has on the pressure side 52 and suction side 54, during use---namely during rotor rotates---usually respectively towards (or against the wind) side windward and leeward (or with the wind) side.Aerofoil profile 50 has wing chord 60, and wing chord 60 has the chord-length c extended between the leading edge 56 and trailing edge 58 of blade.Aerofoil profile 50 has thickness t, and it is restricted in the distance on the pressure side between 52 and suction side 54.The thickness t of aerofoil profile changes along wing chord 60.Arc (camber) line 62 gives departing from of symmetrical profiles, and it is the center line by aerofoil profile 50.Center line can be found by the incircle drawn from leading edge 56 to trailing edge 58.Center line follows the center of these incircles, and apart from wing chord 60 depart from or distance is called as camber f.By using the parameter being called as upper arc (or suction side arc) and lower arc (or on the pressure side arc) also can limit asymmetric, its by be restricted to respectively from wing chord 60 to suction side 54 and on the pressure side 52 distance.
Aerofoil profile is usually characterised in that and is represented by following parameters: the position d of chord-length c, maximum camber f, maximum camber f
f, maximum profile thickness t (it is the maximum diameter of the incircle along middle camber line 62), maximum ga(u)ge t position d
t, and wing tip radius (noseradius) (not shown).These parameters are restricted to the ratio of opposed wings chord length c usually.Therefore, Local Phase is given as local maximum ga(u)ge t and the ratio locally between chord-length c to vane thickness t/c.And, the position d of pressure maximum side camber
pcan design parameter be used as, and can certainly be the position of maximum suction side camber.
Fig. 4-7 shows the different views according to vortex generator arrangement 70 of the present invention, and wherein Figure 4 and 5 show two stereograms, and Fig. 6 shows the cross section of VG device 70, and Fig. 7 shows from side view seen by the trailing edge side of vortex generator arrangement.
As shown in Figure 4, in favourable mode of execution, vortex generator arrangement 70 is formed as fin VG device, fin VG device comprises base 71, base 71 has inner side 72 and outside 73, (when being installed to wind turbine blade outside) inner side 72 is for attachment of the outside of wind turbine blade, and outside 73 deviates from the outside of wind turbine blade.Base 71 also comprises the first side 77 (or trailing edge side) and the second side 78 (or front edge side), and first end 75 and the second end 76.Base 71 makes the first side 77 be parallel to the second side 78 in echelon, and makes the length of the second side 78 of base 71 be less than the length of the first side 77 of base 71.In favourable mode of execution, first end 75 and the second end 76 are directed, and make them form the mutual cone angle of about 38 degree.Base can advantageously generate the periphery of rounding, goes out as further shown in Figure 6.
VG device 70 comprises fin pair, and this fin is to comprising the first fin 79 and the second fin 80, and also referred to as fin, they are given prominence to from the outside 73 of base 71.First fin 79 is directed and is parallel to the first side 75 of base 71 on the first side 75 of base 71, and the second fin 80 is directed and is parallel to the second side 76 of base 71 on the second side 76 of base 71.
Fig. 5 shows the stereogram of VG device 70, wherein the inner side 72 of visible base 71.The inner side 72 of base 71 is provided with recess 74 or undercut portions.Recess 74 has periphery, and this periphery is parallel to the periphery of base 71.Therefore, the periphery of recess 74 is also have side trapezoidal, and these sides are parallel to first end 75, second end 76, first side 77 and second side 78 of base.Recess 74 therefore by surrounding wall 82 around.Surrounding wall 82 is suitable for the tackiness agent of protection setting in recess 74, makes when on the outside being arranged on wind turbine blade, VG device 70 can not become from the outside of wind turbine blade tear loosening.
Fig. 6 shows the cross section of VG device 70, wherein visible first fin 79.VG device is described to have and is placed at adhesive strip 81 in recess 74 or band.Can see, base 71 is bending, makes the inner side 72 of base 71 be recessed between first side 77 and the second side 78 of base 71, and has radius of curvature R.This radius of curvature is chosen to be the mean value of the curvature of blade part section, concrete VG device 70 be expected to be like this in case its by prebuckling to coordinate blades different in a large number and/or blade part section.Advantageously, adhesive strip 81 at least comprises the outer and compressible material layer of bonding on the outside for being arranged on wind turbine blade, such as foamed polymer or foam cell layer.Therefore adhesive strip 81 is adapted to compensate change, accurately to coordinate or to meet the curvature of outside of blade.The curvature of the inner side 72 of base 71 need not be identical with the curvature in the outside 73 of base 71.
And Fig. 6 shows the shape of fin.Can see, fin comprises: leading edge portion 83, and wherein the height of fin increases from the second side 78 of base 71 towards the first side 77 of base 71; Intermediate portion or top section 84, wherein the height substantially constant of fin; And rear edge part 85, wherein the height of fin reduces towards the first side 77 of base 71.In described mode of execution, fin comprises substantially straight rear edge part 85, that is, make the height of fin reduce along this partial linear.Therefore, the tapered surface normal of fin and base 71 (and outside of wind turbine blade) plane that makes of rear edge part 85 forms trailing edge cone angle.Trailing edge cone angle is advantageously about 6 degree.
Fig. 7 shows the side view of the VG device seen from the first side 77 of base 71.Can see, fin is tapered, makes the first side 88 of fin and the second side 89 be divided into the taper of thickness taper angle theta towards the top of fin.Thickness taper angle theta can such as between 1 and 2 degree.And the first fin 79 and 80 can tilt toward each other, the second sloping shaft of the first sloping shaft 86 of the first fin 79 and the second fin 80 surface normal all relatively is therebetween made to form such as inclination angle phi between 0.5 and 1 degree.But fin 79,80 can advantageously vertically be given prominence to from base 71 (and outside of wind turbine blade).
VG device is provided with thickness taper angle theta and trailing edge cone angle and optional inclination angle phi, and VG device 70 can be molded with single piece, and still can be released and need not break the parts of VG device 70 from mould.Meanwhile, the function of VG device 70 is not weakened compared with the VG device of routine.In favourable mode of execution, VG device is molded as the integral member be made up of the bond of PBT and polycarbonate (PC).
Here mode of execution is shown in the single VG fin pair on trapezoidal base.But can recognize, VG device comprises several inventive concept, such as, use recess, cone angle and tilt angle thus VG device can be molded, and using trapezoidal base.Therefore, can understand, other mode of execution utilizing these inventive concepts can be susceptible to.
About be molded VG device, such as, device need not be made accurately to comprise one group of VG fin pair.The VG device that is molded such as can alternatively be formed as comprising the right bar of multiple VG fin, or be formed as only being arranged on the single fin on bottom.
Also be like this for the VG device on inside base with recess, wherein, can understand, this device can be formed as comprising the right bar of many group VG.Such as, and can recognize, this theory can be used to the fluid guiding device that other has the parts protruding outside from bar/base, spoiler, Gurney wing flap or analog.
And can recognize, fin can have various shape.Therefore, fin such as can have the shape of the right-angled triangle as shown in Fig. 8 a, or it can comprise the tapered trailing edge part at as shown in Fig. 8 b, to have equating top, or as the tapered trailing edge part not having equating top in Fig. 8 c.Fin also can comprise intermediate section, and this intermediate section has the top section of the different cone angle as shown in Fig. 8 d or the rounding as shown in Fig. 8 e.The leading edge portion of fin can comprise the straight top section as shown in Fig. 8 a-e or the recessed top section as shown in Fig. 8 f or the convex top section as shown in Fig. 8 g.This rear edge part also can be recessed or convex as shown in Fig. 8 h.Again, this shape can take any combination of portion's section as described in as shown in the mode of execution of Fig. 8.
Fig. 9 illustrates wind turbine 102, it rotor of rotor shaft comprising pylon 104, cabin 106 and have basic horizontal.Three blades 110 that rotor comprises wheel hub 108 and extends from wheel hub 108 radial direction.Rotor is stopped in place, and wherein, one of blade 110 is substantially vertically located and end 114 points to ground.And wind turbine blade 110 is determined (pitch) in time-out (break) position.Workman 185 operation on wind turbine blade 110, and declined by working platform 187 and lifting means 186 trailing edge along blade 110.Lifting means 186 comprises cable, and this cable connects (not shown) in the root vicinity of wind turbine blade 110, such as, be connected to the wheel hub 108 of wind turbine 102.
According to other mode of execution, workman can use cherry picker close to blade.Again, workman can decline along the position wiring of blade above application region.
Next, the Method and kit for according to the outside for VG device 70 being attached to wind turbine blade of the present invention is explained with reference to figure 10-13.
Figure 10 shows blade part section 10 ', and it will be installed additional with according to VG device 70 of the present invention.In shown mode of execution, VG device 70 is arranged on the leading edge place near blade part section 10 '.
In the first embodiment, in order to carefully aim at and VG device 70 be arranged on the proper position in blade part section 10 ' and employ mask membrane 40.Mask membrane 40 comprises a lot of opening 41, the peel ply 42 covering opening 41 and inside and removes film.The method that installs additional from workman mask membrane 40 is applied to the outside of blade part section 10 ' by application region place.Then, workman removes peel ply 42, exposes the opening 41 of mask membrane like this.Then the outside of blade is prepared for attached VG device 70.This by execution such as grinding, polishing, sand paperings, then can clean blade part section alternatively.Owing to corresponding to the use of the opening 41 of the desired location of VG device 70, can only prepare wherein will to arrange or locate the region of VG device 70.Therefore, the grinding on surface, sand papering or polishing can not circle zones on the outer surface of accidental damage blade.And, the surface of blade can be checked before fluid modifier is adhered to blade surface, to guarantee that VG device 70 will be arranged on tram.
After the preparation of the outside of blade part section 10 ', removing inside removes film 43.Therefore, ensure that VG device 70 can not unexpectedly be adhered to mask membrane 40 but be adhered on the outer surface of wind turbine blade.And the remainder 44 of mask membrane 40 can as identifying the correct region indicated for applying mounting plate 90, and it as shown in figure 11.
Mounting plate 90 is made up of such as open celled foam (open-celledfoam) or another kind of foamed polymer.A lot of VG device 70 according to the present invention is embedded in the first side 91 of mounting plate, and the fin of VG device 70 is embedded in mounting plate 90 by this way, and the inner side of VG device is exposed from the first side 91 of mounting plate 90.Mounting plate 90 can be provided with otch or notch 93, or is molded into the hole of the fin for embedding VG device 70.But the plate member that mounting plate can such as separate by two forms, these two plate member of separating are assembled to coordinate the fin around VG device 70.
Mounting plate 90 also comprises peel ply 92, and this peel ply 92 was removed before outside VG device 70 being attached to blade part section 10 '.Then by the first side 91 of mounting plate 90 is applied on the application region on the outside of blade part section 10 ', with the inner side of VG device 70, VG device 70 is adhered to the outside of blade part section 10 ', then remove mounting plate 90, therefore---VG device 70 is stayed on the outside of blade part section 10 ' due to the adhesive strip be used in the recess of VG device 70 as shown in figure 12---.By applying pressure to mounting plate 90, VG device 70 can be adhered to the outside of blade part section 10 ' simply.
By repeating above-mentioned steps, other VG device 70 can be adhered to the outside of blade.In Advantageous embodiments, outmost otch or hole 93 for embedding VG device 70 on mounting plate can be left a blank, as shown in figure 11.Thus, these grooves 93 can be embedded into more than one, by the VG device installed additional.Therefore can be preset in outmost by the VG device that installs additional and contiguous after by the spacing between the VG device that installs additional.Therefore, provide and installed additional the straightforward procedure installing other VG device in the direct extension of VG device additional.
In fact, because high wind etc. may be difficult to control mask membrane, so outside mask membrane 40 being applied to blade part section 10 ' may be difficult to, especially all the more so when VG device 70 is installed at wind turbine on the spot.Therefore, according to another mode of execution shown in Figure 13, the simple setting using and install with reference to rope (many with reference to rope) 240,240 ' alternatively can be utilized.Install and can aim at the precalculated position in blade exterior with reference to rope 240,240 ' thus flush for bonding VG device with application region 245.Installing can by the surface using band 248 to be applied to blade with reference to rope 240,240 '.Then VG device 70 is to be adhered to the outside of blade with similar fashion in front described mode of execution.
Blade can comprise from nearest the first longitudinal part section 250 of root of blade, from nearest the 3rd longitudinal part section 252 of blade end and the centre second longitudinal part section 251 between the first longitudinal part section 250 and the 3rd longitudinal part section 252.Three longitudinal part sections 250,251,252 can be provided with the VG device of different size.In the mode of execution described by Figure 13, three longitudinal part sections 250,251,252 extend along the penetrale of the part of portion's section of the root of blade, blade transition zone and airfoil section.But can easily recognize, the longitudinal part section comprising different VG devices can differently be located, and the scope of longitudinal part section will change according to vane type.Also only may use two longitudinal part sections, and only have the VG device of two types thus.Again, four or even five longitudinal part sections also may be used, and the different VG devices of respective numbers.
In fact, can find out, what only use three kinds was dissimilar is just enough to cover much different blade part sections and vane type for the VG device installed additional, that is:
| Type | Total height | The height of base | Excess height | Curvature R |
| VG 10 | 10mm | 13mm | 0.35mm | 500mm |
| VG 20 | 20mm | 2.0mm | 0.8mm | 1001mm |
| VG30 | 30mm | 2.0mm | 0.8mm | 1501mm |
Claims (16)
1. fluid modifier is attached to the method for wind turbine blade outer surface by one kind, described fluid modifier is the type with base, described base comprises inner side and outer side, described inner side is for being attached in the surface of described wind turbine blade, described outside has outstanding fluid modifier parts, and wherein said method comprises step:
A) described outstanding fluid modifier parts are embedded in mounting plate, make the inner side of described fluid modifier be exposed to the first side of described mounting plate,
B) by being applied on the application region on the surface of described wind turbine blade described first side of described mounting plate, the described inner side of described fluid modifier is made to be adhered to the surface of described wind turbine blade, and
C) described mounting plate is removed from the application region the surface of described wind turbine blade.
2. the method for claim 1, wherein said fluid modifier is vortex generator arrangement or turbulence-creating devices.
3. method as claimed in claim 2, wherein said fluid modifier is fin vortex generator.
4. method as claimed any one in claims 1 to 3, the described inner side of the described base of wherein said fluid modifier is equipped with bonding film, described bonding film is covered by peel ply, and wherein said method removes the step of described peel ply before being included in step b).
5. method as claimed in claim 4, wherein said bonding film is two self adhesive tapes.
6. as claimed any one in claims 1 to 3 method, wherein in step a), multiple fluid modifier is embedded in described mounting plate, described fluid modifier along described mounting plate with predetermined spaced setting.
7. method as claimed any one in claims 1 to 3, wherein prepared described application region for bonding before step a).
8. method as claimed in claim 7, the wherein surface use mask membrane of wind turbine blade described in the forward direction of step b), described mask membrane is equipped with opening, described opening corresponds to the desired locations of the described fluid modifier on the surface of described wind turbine blade, the inside that wherein said mask membrane comprises alternatively around described opening removes membrane portions, and described inside is removed membrane portions before being included in step a) and removes by wherein said method, and wherein after step b), advantageously remove described mask membrane from the surface of described wind turbine blade.
9. method as claimed any one in claims 1 to 3, was wherein arranged on installation on the outer surface of described blade with reference to rope before step b).
10. method as claimed any one in claims 1 to 3, wherein other mounting plate comprises the other fluid modifier exposed from its first side, and also comprise opening in its one end, described opening is for receiving the fluid modifier on the surface being installed in described wind turbine blade, and wherein said method also comprises step: embedded in described opening by the fluid modifier installed, and bond described other fluid modifier in the mode identical with step b) subsequently.
11. methods as claimed any one in claims 1 to 3, wherein perform described method on the spot on the epitrochanterian wind turbine blade being positioned in wind turbine.
12. methods as claimed in claim 11, wherein said blade is positioned in substantially vertical position, end points to ground, and wherein before step b), workman declines downwards along the point of wind turbine blade above application region, or alternately workman upwards promotes from the point below described application region.
13. 1 kinds of semifinished product, it comprises:
-mounting plate (90), described mounting plate (90) has the first side (91) and the second side, and
-multiple fluid modifier (70), it comprises:
-base (71), described base (71) comprises inner side (72) and outside (73), when on the surface being installed in wind turbine blade, described inner side (72) is for being attached in the surface of described wind turbine blade, described outside (73) has outstanding fluid modifier parts (79,80), wherein
-described outstanding fluid modifier parts (79,80) are embedded in described first side (91) of described mounting plate (90), make the described inner side (72) of described fluid modifier (70) be exposed to first side (91) of described mounting plate (90).
14. semifinished product as claimed in claim 13, wherein said mounting plate is made up of foamed polymer at least partly.
15. semifinished product as described in claim 13 or 14, wherein said fluid modifier is fin vortex generator.
16. kits, it comprises semifinished product according to any one of claim 13 to 15 and mask membrane (40), and the outer surface that described mask membrane (40) is suitable for being applied in wind turbine blade is provided with the opening (41) of the desired locations corresponding to the described fluid modifier (70) on the surface of described wind turbine blade.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11153351.9A EP2484896B1 (en) | 2011-02-04 | 2011-02-04 | Mounting of vortex generator devices on a wind turbine rotorblade by means of mounting plate |
| EP11153351.9 | 2011-02-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102705156A CN102705156A (en) | 2012-10-03 |
| CN102705156B true CN102705156B (en) | 2016-02-03 |
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| CN201210103232.0A Active CN102705156B (en) | 2011-02-04 | 2012-02-03 | The method of vortex generator arrangement is installed by mounting plate |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9051919B2 (en) |
| EP (1) | EP2484896B1 (en) |
| CN (1) | CN102705156B (en) |
| DK (1) | DK2484896T3 (en) |
| ES (1) | ES2481794T3 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2484896B1 (en) | 2014-04-23 |
| US9051919B2 (en) | 2015-06-09 |
| EP2484896A1 (en) | 2012-08-08 |
| US20120257978A1 (en) | 2012-10-11 |
| CN102705156A (en) | 2012-10-03 |
| DK2484896T3 (en) | 2014-07-28 |
| ES2481794T3 (en) | 2014-07-31 |
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